Deep-well rotary drilling apparatus



13 192 1542453 Sept 7 c. E. REED DEEP WELL ROTARY DRILLING APPARATUS Filed June 15., 1925 2 sheets-sheet 1 xsf* Sept 131927 c. E. REED DEEP WELL ROTARY DRILLING APPARATUS Filed Juri@ 15, 1925 2 Sheets-Sheet 2 Patented Sept. 13,y 1927.

UNITED STATES CLARENCE E. REED, `OIEV'WICHI'IA; KANSAS.

` `lDEEP-NELL ROTARY DBILLING APPARATUS..

application mea :une 15, 1925. seal No. 37,183.

' This invention relates to deep well rotary drilling apparatus and particularly the reaming of wells, and it concerns the features and combination and arrangement of parts "5 therein as described'and particularly pointed out in the claims. The invention is shown by way of example of the principles embodied therein in the accompanying drawin sin which 't 4 l ig. 1 is a vertical sectional view of the invention. Fig. 2 is a sectional view on Fig. 3 is a sectional view on the line 3-3. Fig. 4 is a sectional view on the line l.1.4. Fig. .5 is a sectional view on the line 5-5 with the cage in operating position.

Fig. 6 is a sectional view on the line 5 5 with cage in dotted line position.

Fig. 7 is a view, looking into the cage.

Fig. 8 is an end view of the cage.

Fig. 9 is a side view looking into the laterally open recess,n cage 3, roller 8 bearing `9, and setscrew 11 shown in section..

Fig. is a perspective view of bearing 9.

Inthese diawingsFig. 1 indicates a r tatablebody embodying the invention. 1 is the -lower `end of a collar member screw threaded on` the shank of the rotatable body 2. VThe upper end of this collar is connected 30. to the lower end of a hollow drill stem not shown. The drill stem at the surface is connected with the rotary machinery in the usual manner and the interior of the hollow drill stem is in connection with pumps cir- 85 culating a fluid downwardly through the hollow drill s tem in operation of the apparatus. The lower end of the collar has a coun-v ter bore extending down over the parts 3 and 9. The part 3 is shown in solid black lines inoperating position and in dotted lines is shown the position 3, 4, and associated parts will assume under pressure applied in a downward direction on the beveled ortion of the roller cutter 8, the direction o the 45 pressure being indicated by an arrow. This pressure will usually be applied as theapparatus is being withdrawn from the well and enters a casing set in the well. 3 designates a cage in which is mounted a roller cutterrwith individual bearings 9 and 10 at each end. The bearings are in general of cylindrical form in body portion with a v ylrhndrical stud projecting into the end of le cutter, the other end of the bearing prothe une Qf-e. y,

cone shaped-end of cylindrical member 4.

v1ded with a ton ue tting a groove in the cage member 3. hollow head plug 11 seated 1n the end of the cage 3 holds the bearing 9 1n place. In the drawing a plug l1 is shown only at the top ofthe cage 3. This construction may be duplicated at the lower end of the cage if desired. The roller 8 and bearings 9 and 10, are assembled in the cageA 3 and retained by the plug 11, after which the assembly is handled as a unit. The lower portion of 3 rests on the body 2 at theJ outside and at its inner side 3 rests on the The conical upper end of 4 is grooved on a radius to receive and center the cage 3 in the recess, this groove .construction being lllustrated in Fig. 4. The cylindrical member 4 is capable of movement up and down in a bore of the body 2. Provision is made for ample movement of 4 under pressure so it maydrop low enough to permit 3 to assume the position shown in dotted lines. lower portion of bod 2 is made lon enough .to provide space in t e bore below t e member `4 for a coil spring 6 and below the coil spring a cap member 7 threaded in the lower end 'of the bore, and arranged to take a wrench for adustxnent of the cap to regulate the tension of the. s ring. The member 4 and the cap member are eachbored, or

provided with a passageway for the circula.

tion of lfluid through them. The lower end of the body 2 is finished to providea connection or\attachment of any tool that may be desired below. A dove-tail groove is shown cut the length of the cone shaped end of the member 4 to receive a dove-tail dowel 5, the other end of which is connected with cage 3. The end of the dowel in the cage 3 may be riveted, or threaded, or if desired, the hole in 3 may be reamed out to receive a nut attached by a` threaded end of` the dowel. The purpose of 5 is to prevent `the cage 3 from tipping forward at its upper end while in the position indicated in vdotted lines, in the event the pressure on the roller Thr 8 is suddenly removed. 5 is a guide or retainer. v In lieu of this construction a n may be formed on the upper portion o the cage 3, the fin to lay in a'radial groove cut r stated, the roller and bearings would be assembled in the cage 3 and handled as a unit. The unit would be dropped into the recess of the body 2 with the collar l removed and the member 4 in low position. The collar 1 would then be put in place, the sprmg 6 arranged under 4, and the plu or cap screwed in below the spring and a justed to raise member 4 to expand 3 to operating position. It will, of course, be understood the spring may be omitted when underreaming i`s not desired and the ca e held rigidly at fixed cutting diameter. 'I` e pressure ci operating load would be in reverse direction to the arrow shown at the outside of the figure, which would carr the thrust upwardly against the solid bouy portion 2. The spring below the member 4 would be a heavy spring capable of carrying Aits portion of the operating load without deiiection. As some sand may be required to be handled at times a drain hole is shown in the body 2 leading outwardly from the bottom of the recess. When circulation is not desired thru the body at this point the periphery of 4: may be corrugated and fluid will drain into the lower part of the body.`

In Fi 9 the body is shownunder cut all around elow the iiange-like portion below the threaded shank. If desired, the lines of the main body may be cylindrical and undercut only enough at the end of therecess to permit the entrance of cage.

For insertion in a well casingthe rollers 'will be collapsed by pressure applied by workman on the derrick Hoor and the cutters will automatically expand to operating position when the apparatus passes out of the lower end of the casing in the well.

It will be understood that the above description and the drawings accompanying the same are to be regarded as illustrative of my invention and not as restrictive upon the scope of my invention which is defined by the appended claims.

It will be noticed that the upper and lower ends of the caffe or carrier for the reamer roller lit in wlliat Ymay be termed sockets formed at the top by the parts l and 2 and at the bottom of the carrier by the recess 2L in the body 2. l

This lower socket has an inclined wall parallel with the inclined wall bounding the V.part of the member 2 has a horizontally ex-m tending iange with a hat horizontal under surface against which the upper end of the cage or carrier abuts. This part Aoi. the rugged or comparatively massive head' sustains the thrust. The iiange of the member 1, which iange embraces the cage, serves .apparatus, a body having 'a laterally open merely to retain said cage at its upper end wit-hin the lrecess and it is not relied on to sustain the thrust.

I claim:

l. In combination in a deep well drilling apparatus, a bod having a central bore for flushing iiuid an slots opening laterally and also opening into said bore, carriers mounted in the slots, the inner sides of said carriers constituting the wall of said bore to direct the fluid through the bore and'prevent the escape of said iuid through the said slots reamer rollers mounted in the carriers, an resilient means for forcing the carriers outwardly, substantially as described.

2. In combinationin a drilling apparatus, a body having a laterally openJ recess bounded by upper and lower parallel walls inclin ing upwardly and outwardl a carrier mountedin the recess and gui ed at its top and bottom portions by said inclined guide walls, a reamer roller mounted in the carrier and means for exerting pressure upon the carrier to force the same outwardly alon said inclined walls, substantially as describe 3. In combination in a deep well drilling.- apparatus, a body having laterally open recesses with an inclined guidewall and havy ing a horizontal portion presenting a horizontal thrust resisting surface at the upper part of the recess, a carrier guided by the `inclined wall of the recess. a reamer cutter mounted in the carrier. said carrier whenin its outermost position iinding a thrust bearing against said surface and a collar mount-A ed on the body and having a flange extending down over thc upper end of the carrier, and resilient means for forcing the carrier upwardly and outwardly along the inclined wall, substantially as described.

t. In combination in a deep well drilln apparatus, aA bod having recesses with inclined guide wal s, carriers slidably' guided in said recesses, reamer rollers mountedin said carriers, a center member having a cone shaped upper end bearing on the carriers and a spring for forcing said center member upwardly to force the-carriers outwardly, and a slidable dove-tailed interlocking connection between the carrier and the conical member to prevent tipping of the carrier, sgbstantially as described. 3

5. In combination in a deep well drilling apparatus, a body having laterally open recesses with upwardly and outwardly inclined guide walls, carriers in the recesses A guided by said walls, a center member having radial lguide grooves, means on the carriers interlocking with the walls of said radial guide y'grooves to prevent the carriers,

from tipping, and meansfor exerting pressure upon the center member, substantially as described.

6. In combination in a deep well drilling recess, a ,carrier in said recess having upper and lower bearing portions, a-reamer roller described.

- open recesses with inclined 'gui fi. in Combination iii a deep weil drilling apparatus, a body member having laterallyJ open recesses with inclined guiding Walls,

` carriers slipped laterally into said recesses,ik

rollers with their4 bearings slipped laterally into the carriers, and means for holding said bearings'and rollers within the carriers, said, rollers and bearings being slipped into place in the carriers as one .body and the rollers land carriers being slipped as one body into ythe body member."

8. ,In combination in a/deep well-dril1ing apparatus, a body member haviig laterally ing walls, carriers slipped laterally into Said recesses, rollers with their bearings slipped laterally into the carriers, and means vforl holding said bearings and rollers within the carriers, said rollers and bearings being slipped into place in the carriers as one body and therollers and carriers bein slipped as one body intothe body mem er, and ,a collar having a. flange to hold'the carriers in place, substantially as described.

- 9. In combination. in a dee well drilling apparatus, ya. main body mem er having lateral recesses, carriers in the recesses, reamer. rollers having upper and lower removable bearings insertable with said rollers into the .upper .and lower portions of-the carriers as one body, and said carriersinsertable into the recesses with the rollers and their bear-- ings as one body and meansfor retaining the carriers in place, substantially as described. 10. In combination in a'deep well drilling machine, a main body having a laterally open recess, a roller cutter having sockets at its ends, bearings independently and removably mounted in said sockets, seats for removably receiving said bearings in the re'- ccss of the main body, and means for remov- 4ably holding one of said bearings to the body, substantially as described.

11. In combination in a deep well drilling machine, aamain body havinv a laterally open recess, a roller cutter having sockets at its ends, a bearing removably mounted in each socket, means for removably receiving said bearings in the recess of the main body. and means for 4removably 'holding' one of said bearings to the body, said means comprising a collar removably connected to the body and having a depending flange for retaining said bearing member against lateral move;

:one body, a bearing removably engaginor the roller at each end, and each bearing eing removably mounted yin the holding member, a pin for retaining one of the bearingsV in the holding member, and removable means for retaining theholdiiig member within the recess, substantially as described. t

i 13. In combination in a deep well drilling apparatus, a body having a recess with an upwardly and outwardly inclined upper wall facing outwardly, and a lower wall inclining upwardly and outwardly and facing inwardly, a. carrier in the recess `having its upper portion gulded by the upperinclined guided by the lower inclined wall. a reamer roller mounted in the carrier, and detachable L wall, and its lower portion retained and means on the body or retaig the carrier i within the recess at the upper part thereof. l 14. In combination in a deep well dri i:

apparatus, a2 body portion havinfa` a reces opening outwardly through the face thereof, a roller cutter, a carrier for said roller cutter,

independent bearing members one at each end of the roller each independently engaging the saine removably and seated in the carrier, and means for holding one of said bearings in place.

In combination with a body member having a pocket opening out through its face, a cage in the pocket and bearings to beslid into said cage at the opposite ends' thereof ice and in a direction radial to the ams of said cage, a roller mounted in said bearings and means for holding the bearings in the pocket.

16. In dee well rotary drilli apparatus,

a rotatable ody having latera y open recesses with inclined guidingwalls, cages slidably mounted in the recesses. and guided by said inclined walls, `a vertically movable member "mounted centrally of the body, a spring for pressing said member u` Wardl said member having radially sliding su stantially dove-tailed interlocking connec' tions with said cages to prevent tipping of the cages. f

17. In dee well rotary drilling apparatus, a rotatable Yody having laterally open recesses with inclined guiding walls cages mounted in the recesses and guided by said inclined walls, a vertically movable member mounted centrally of the body, a spring for pressing'said member upwardly, said member having radiallysliding tongue and groove connections with said cages, and said member being longitudinally perforated to permit flow of flushingiluid. i'

18. In deep well drilling apparatus, a bod member having, laterally open recesses, ea l recess having an upper' wall inclining upwardly and outwardly and facing outwardly,

and e lower wall inclined upwardly and outwardly and facing inwardly, cages mounted in said recesses, each having at its inner slde `an upwardly and outwardly inclined upper" surface, and an' upwardly and inwardly inchned lower surface, said cages each having a lower outer side inclined to `conform to the tion between the block and each cage, an

abutment surface on the body member -or the up r end of each cage, and a collar remova 1y secured to thebody and having a depending annular ange to retain the cages in the recesses. y.

19. In combination in deep well drilling apparatus, a reamer body having laterally open recees defined by parallel plane side walls, cages having corresponding plane facesV to bear on said plane walls, inclined walls in the recesses against which inclinedl faces of the cages work, means for pressing said cages outwardly having a. sliding interlocking connection with the lower parts of said cages for retaining them in the recesses `and means engagin the upper parts of the cages for retaining t ein in said recesses, substantially as described.

ln testimony whereof, I ailixmy signature.'

, CLARENCE E. REED. 

